<template>
  <div id="roles">
    <!-- 面包导航 -->
    <el-breadcrumb separator="/" style="padding-left:10px;padding-bottom:10px;font-size:12px;">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>系统管理</el-breadcrumb-item>
      <el-breadcrumb-item>角色管理</el-breadcrumb-item>
    </el-breadcrumb>

    <!--卡片主体-->
    <el-card class="box-card">

      <!--上部工具栏-->
      <el-row :gutter="20">
        <!--搜索框-->
        <el-col :span="8">
          <el-input
            clearable
            size="small"
            placeholder="请输入角色名查询"
            v-model="queryMap.roleName"
            class="input-with-select"
            @clear="getRoleList"
          >
            <el-button slot="append" icon="el-icon-search"  @click="search"></el-button>
          </el-input>
        </el-col>
        <!--添加按钮-->
        <el-col :span="2">
          <el-button
            size="small"
            type="success"
            icon="el-icon-circle-plus-outline"
            @click="addDialogVisible=true"
          >添加
          </el-button>
        </el-col>
        <!--导出按钮-->
        <el-col :span="2">
          <el-button
            size="small"
            icon="el-icon-download"
            @click="downExcel"
          >导出
          </el-button>
        </el-col>
      </el-row>

      <!-- 表格区域 -->
      <template>
        <el-table
          v-loading="loading"
          :data="roleData"
          border
          style="width: 100%;margin-top:20px;"
          height="470"
          size="small"
        >
          <el-table-column prop="id" label="ID" width="180"></el-table-column>
          <el-table-column prop="roleName" label="角色名" width="180"></el-table-column>
          <el-table-column prop="createTime" label="创建时间" width="150"></el-table-column>
          <el-table-column prop="isban" label="是否禁用" width="100">
            <template slot-scope="scope">
              <el-switch v-model="scope.row.status" @change="changRoleStatus(scope.row)"></el-switch>
            </template>
          </el-table-column>
          <el-table-column prop="remark" label="备注"></el-table-column>
          <el-table-column fixed="right" label="操作" width="200">
            <template slot-scope="scope">
              <el-button

                @click="grant(scope.row.id)"
                type="text"
                icon="el-icon-present"
                size="small"
              >授权</el-button>
              <el-button @click="edit(scope.row.id)" v-hasPermission="'role:edit'" type="text" icon="el-icon-edit" size="small">编辑</el-button>
              <el-button
                v-hasPermission="'role:delete'"
                @click="del(scope.row.id)"
                type="text"
                icon="el-icon-delete"
                size="small"
              >删除</el-button>
            </template>
          </el-table-column>
        </el-table>
      </template>

      <!--分页-->
      <el-pagination
        style="padding-top: 15px"
        @size-change="handleSizeChange"
        @current-change="handleCurrentChange"
        :current-page="queryMap.pageNum"
        :page-sizes="[8, 10, 20, 30]"
        :page-size="queryMap.pageSize"
        layout="total, sizes, prev, pager, next, jumper"
        :total="total">
      </el-pagination>

      <!-- 添加弹框 -->
      <el-dialog title="添加角色" :visible.sync="addDialogVisible" width="50%" @close="closeAdd">
        <el-form ref="addFormRef" :model="addForm" label-width="80px" :rules="addFormRoles">
          <el-form-item label="角色名称" prop="roleName">
            <el-input v-model="addForm.roleName"></el-input>
          </el-form-item>
          <el-form-item label="描述信息" prop="remark">
            <el-input type="textarea" v-model="addForm.remark"></el-input>
          </el-form-item>
        </el-form>
        <span slot="footer" class="dialog-footer">
          <el-button @click="addDialogVisible = false">取 消</el-button>
          <el-button
            type="primary"
            @click="addRole"
            :loading="btnLoading"
            :disabled="btnDisabled"
          >确 定</el-button>
        </span>
      </el-dialog>

      <!-- 编辑弹框 -->
      <el-dialog title="编辑角色" :visible.sync="editDialogVisible" width="50%" @close="closeEdit">
        <el-form ref="editFormRef" :model="editForm" label-width="80px" :rules="addFormRoles">
          <el-form-item label="角色名称" prop="roleName">
            <el-input v-model="editForm.roleName"></el-input>
          </el-form-item>
          <el-form-item label="描述信息" prop="remark">
            <el-input type="textarea" v-model="editForm.remark"></el-input>
          </el-form-item>
        </el-form>
        <span slot="footer" class="dialog-footer">
          <el-button @click="editDialogVisible = false">取 消</el-button>
          <el-button
            type="primary"
            @click="updateRole"
            :loading="btnLoading"
            :disabled="btnDisabled"
          >确 定</el-button>
        </span>
      </el-dialog>

      <!-- 角色授权弹出框 -->
      <el-dialog title="分配菜单权限" :visible.sync="grantDialogVisible" width="38%">
        <span>
          <el-tree
            :auto-expand-parent="false"
            :data="data"
            show-checkbox
            node-key="id"
            :default-expanded-keys="open"
            :props="defaultProps"
            ref="tree"
            highlight-current
          ></el-tree>
          <!-- check-strictly -->
        </span>
        <span slot="footer" class="dialog-footer">
          <el-button @click="grantDialogVisible = false">取 消</el-button>
          <el-button
            v-hasPermission="'role:authority'"
            type="primary"
            icon="el-icon-setting"
            @click="authority"
            :loading="btnLoading"
            :disabled="btnDisabled"
          >授 权</el-button>
        </span>
      </el-dialog>

    </el-card>
  </div>
</template>

<script>
  export default {
    name: "roles",
    data(){
      return {
        btnLoading: false,
        btnDisabled: false,
        loading: true,
        total: 0,
        queryMap: { roleName: "", pageNum: 1, pageSize: 7 }, //查询条件
        roleData: [], //角色表格数据
        addForm: {}, //添加数据
        editForm: {}, //编辑数据
        addDialogVisible: false, //添加弹框的显示
        editDialogVisible: false, //编辑弹框
        grantDialogVisible: false, //授权弹出框
        data: [],
        open: [], //展开
        grantId: "",
        defaultProps: {
          children: "children",
          label: "menuName"
        },
        addFormRoles: {
          roleName: [
            { required: true, message: "请输入角色名称", trigger: "blur" },
            { min: 3, max: 10, message: "长度在 3 到 10 个字符", trigger: "blur" }
          ],
          remark: [
            { required: true, message: "请输入角色描述信息", trigger: "blur" },
            { min: 5, max: 20, message: "长度在 5 到 20 个字符", trigger: "blur" }
          ]
        } //添加验证规则
      };
    },
    methods: {
      /**
       * 加载用户列表
       * @returns {Promise<void>}
       */
      async getRoleList() {
        const { data: res } = await this.$http.get("role/findRoleList", {
          params: this.queryMap
        });
        console.log(res)
        if (res.code == 200) {
          this.roleData = res.data.rows;
          this.total = res.data.total;
        }
      },
      //编辑
      async edit(id) {
        const { data: res } = await this.$http.get("role/edit/" + id);
        if (res.code == 200) {
          this.editForm = res.data;
          this.editDialogVisible = true;
        } else {
          return this.$message.error("角色编辑失败:" + res.msg);
        }
      },
      //删除
      async del(id) {
        var res = await this.$confirm(
          "此操作将永久删除该角色, 是否继续?",
          "提示",
          {
            confirmButtonText: "确定",
            cancelButtonText: "取消",
            type: "warning"
          }
        ).catch(() => {
          this.$message({
            type: "info",
            message: "已取消删除"
          });
        });
        if (res == "confirm") {
          const { data: res } = await this.$http.delete("role/delete/" + id);
          console.log(res);
          if (res.code == 200) {
            this.$message.success("删除成功");
            await this.getRoleList();
          } else {
            this.$message.error("删除失败:" + res.msg);
          }
        }
      },
      //更新用户
      async updateRole() {
        this.$refs.editFormRef.validate(async valid => {
          if (!valid) {
            return;
          } else {
            this.btnDisabled = true;
            this.btnLoading = true;
            const { data: res } = await this.$http.put(
              "role/update/" + this.editForm.id,
              this.editForm
            );
            if (res.code == 200) {
              this.$notify({
                title: "成功",
                message: "角色信息更新",
                type: "success"
              });
              this.getRoleList();
            } else {
              this.$message.error("角色信息更新失败:" + res.msg);
            }

            this.editDialogVisible = false;
            this.btnDisabled = false;
            this.btnLoading = false;
            this.editForm = {};

          }
        });
      },
      /**
       * 搜索
       */
      search() {
        this.queryMap.pageNum = 1;
        this.getRoleList();
      },
      /**
       * 关闭添加弹框
       */
      closeAdd() {
        this.$refs.addFormRef.clearValidate();
        this.addForm = {};
      },
      closeEdit() {
        this.$refs.editFormRef.clearValidate();
        this.editForm = {};
      },
      /**
       * 添加角色
       * @returns {Promise<void>}
       */
      async addRole() {
        this.$refs.addFormRef.validate(async valid => {
          if (!valid) {
            return;
          } else {
            this.btnDisabled = true;
            this.btnLoading = true;
            const { data: res } = await this.$http.post("role/add", this.addForm);
            if (res.code == 200) {
              this.$message.success("添加成功");
              this.addDialogVisible = false;
              this.btnDisabled = false;
              this.btnLoading = false;
              this.addForm = {};
              await this.getRoleList();
            } else {
              return this.$message.error("角色添加失败:" + res.msg);
            }
          }
        });
      },
      //获取选中的节点
      async authority() {
        this.btnDisabled = true;
        this.btnLoading = true;
        const { data: res } = await this.$http.post(
          "role/authority/" + this.grantId,
          [].concat(
            this.$refs.tree.getCheckedKeys(),
            this.$refs.tree.getHalfCheckedKeys()
          )
        );
        if (res.code == 200) {
          this.$message.success("角色授权成功");
        } else {
          this.$message.error("角色授权失败:" + res.msg);
        }
        this.btnDisabled = false;
        this.btnLoading = false;
        this.grantDialogVisible = false;
      },
      //用户授权
      async grant(id) {
        //加载所有菜单以及用户拥有的菜单权限id
        const { data: res } = await this.$http.get("role/findRoleMenu/" + id);
        if (res.code == 200) {
          //默认选中的树的数据
          let that = this;
          setTimeout(function() {
            res.data.mids.forEach(value => {
              that.$refs.tree.setChecked(value, true, false);
            });
          }, 100);
          this.data = res.data.tree;
          this.open = res.data.open;
          this.grantId = id; //需要授权的id
        }
        this.grantDialogVisible = true;
      },
      /**
       * 加载菜单表格
       */
      downExcel() {
        var $this = this;
        const res = this.$http.request({
          url: "/role/excel",
          method: "post",
          responseType: "blob"
        })
          .then(res => {
            if(res.headers['content-type']==='application/json'){
              return $this.$message.error("Subject does not have permission [role:export]");
            }
            const data = res.data;
            let url = window.URL.createObjectURL(data); // 将二进制文件转化为可访问的url
            var a = document.createElement("a");
            document.body.appendChild(a);
            a.href = url;
            a.download = "角色列表.xls";
            a.click();
            window.URL.revokeObjectURL(url);
          });
      },
      /**
       * 改变角色禁用状态
       * @param row
       * @returns {Promise<void>}
       */
      async changRoleStatus(row) {
        const { data: res } = await this.$http.put(
          "role/updateStatus/" + row.id + "/" + row.status
        );
        if (res.code !== 200) {
          this.$message.error("更新状态失败:" + res.msg);
          row.status = !row.status;
        } else {
          this.$message.success("更新状态成功");
        }
      },
      //改变页码
      handleSizeChange(newSize) {
        this.queryMap.pageSize = newSize;
        this.getRoleList();
      },
      //翻页
      handleCurrentChange(current) {
        this.queryMap.pageNum = current;
        this.getRoleList();
      }
    },
    created() {
      this.getRoleList();
      setTimeout(() => {
        this.loading = false;
      }, 500);
    }
  }
</script>

<style scoped>

</style>
